<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            background: url('https://cdn.pixabay.com/photo/2018/08/14/13/23/ocean-3605547_1280.jpg') no-repeat;
            background-size: 100% 130%;
        }

        #login_box {
            width: 20%;
            height: 400px;
            background-color: #00000060;
            margin: auto;
            margin-top: 10%;
            text-align: center;
            border-radius: 10px;
            padding: 50px 50px;
        }

        h2 {
            color: #ffffff90;
            margin-top: 5%;
        }

        #input-box {
            margin-top: 5%;
        }

        span {
            color: #fff;
        }

        input {
            border: 0;
            width: 60%;
            font-size: 15px;
            color: #fff;
            background: transparent;
            border-bottom: 2px solid #fff;
            padding: 5px 10px;
            outline: none;
            margin-top: 10px;
        }

        button {
            margin-top: 50px;
            width: 60%;
            height: 30px;
            border-radius: 10px;
            border: 0;
            color: #fff;
            text-align: center;
            line-height: 30px;
            font-size: 15px;
            background-image: linear-gradient(to right, #30cfd0, #330867);
        }

        #sign_up {
            margin-top: 45%;
            margin-left: 60%;
        }

        a {
            color: #b94648;
        }
    </style>
</head>
<body>
<div id="login_box">
    <h2>LOGIN</h2>
    <div id="input_box">
        <input id="username" type="text" placeholder="请输入用户名">
    </div>
    <div class="input_box">
        <input id="password" type="password" placeholder="请输入密码">
    </div>
    <button onclick="submit()">登录</button><br>
</div>
</body>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<script type="application/javascript">
    $(function(){

    })

    function submit(){
        let username = $("#username").val();
        let password = $("#password").val();
        if(username == '' || username == null){
            alert("请输入用户名");
            return
        }
        if(password == '' || password == null){
            alert("请输入密码");
            return
        }
        let userObj = {
            "username":username,
            "password":password
        }
        $.ajax({
            url:'/signIn',
            type: "POST",
            data:JSON.stringify(userObj),
            dataType:"JSON",
            contentType:"application/json",
            success:function(data){
                console.log(data);
                let username = data.customData.username;
                localStorage.setItem("token",data.data);
                localStorage.setItem("username",username);
                window.location.href="/index/index/"+username;
            },
            error:function(e){
                console.log(e);
            }
        })
    }
</script>
</html>
